Industry · Form 5500 business code 237100
Utility System Construction: retirement plans
Plans whose sponsor entered this principal business activity code on Form 5500.
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. The business code is chosen by the filer from the list in the Form 5500 instructions.
For plan year 2024, 108 retirement plans in utility system construction with 100 or more participants filed Form 5500: 108 defined contribution and 0 defined benefit. They reported 88,100 participant records and $5.26B in net assets, counting every plan on the form.
The median defined contribution plan held $40,776 per participant, well below the national median of $53,031, and its employer put in $2,522 per active participant (national: $2,174). Among plans reporting Schedule C compensation the median was $123 per participant against $123 nationally.
Employers contributed $202M and participants $243M during the year, and the plans paid out $478M in benefits.
In 2009 the same group numbered 55 plans with $333M; by 2024 it was 108 plans (up 96%) and $5.26B (up 1481%). From plan year 2023 the 100-participant line counts participants with account balances, which moved many plans to the short form.
Medians compared with all US plans
| Median plan, plan year 2024 | Industry: DC | US: DC | Industry: DB | US: DB |
|---|---|---|---|---|
| Net assets per participant | $40,776 | $53,031 | — | $86,234 |
| Employer contributions per active participant | $2,522 | $2,174 | — | $10,244 |
| Schedule C compensation per participant | $123 | $123 | — | $344 |
| Schedule C compensation, share of net assets | 0.37% | 0.26% | — | 0.42% |
| Administrative expenses per participant | $119 | $116 | — | $527 |
Medians across plans with 100 or more participants (104 DC and 0 DB plans with a Schedule H here). Fee medians cover plans reporting an amount. DC: defined contribution, such as 401(k) and 403(b). DB: defined benefit pension.
Distribution of DC plans
| Measure | 25th percentile | Median | 75th percentile | Plans |
|---|---|---|---|---|
| Net assets per participant | $17,179 | $40,776 | $79,668 | 104 |
| Employer contributions per active participant | $1,397 | $2,522 | $5,325 | 100 |
| Schedule C compensation per participant | $60.74 | $123 | $199 | 93 |
| Administrative expenses per participant | $47.80 | $119 | $212 | 99 |
Trend by plan year
| Plan year | Plans 100+ | Participants | Net assets | Employer contributions | Participant contributions | Median DC assets / participant | Median DC Sch. C / participant |
|---|---|---|---|---|---|---|---|
| 2025partial | 13 | 33,809 | $1.45B | $58.8M | $81.5M | $38,815 | $151 |
| 2024 | 108 | 88,100 | $5.26B | $202M | $243M | $40,776 | $123 |
| 2023 | 102 | 83,086 | $4.25B | $184M | $222M | $37,368 | $109 |
| 2022 | 125 | 78,815 | $3.54B | $154M | $200M | $26,393 | $96.21 |
| 2021 | 120 | 72,878 | $3.69B | $145M | $175M | $33,009 | $110 |
| 2020 | 111 | 69,537 | $3.13B | $122M | $158M | $27,213 | $94.85 |
| 2019 | 103 | 79,360 | $2.55B | $115M | $140M | $21,015 | $77.49 |
| 2018 | 88 | 60,869 | $2.00B | $90.7M | $104M | $23,893 | $84.50 |
| 2017 | 84 | 49,978 | $1.78B | $73.8M | $87.2M | $24,680 | $69.40 |
| 2016 | 74 | 47,614 | $1.40B | $67.2M | $72.5M | $20,249 | $61.79 |
| 2015 | 66 | 45,160 | $1.20B | $54.8M | $62.0M | $22,072 | $56.96 |
| 2014 | 63 | 40,558 | $1.10B | $44.8M | $48.7M | $23,390 | $44.88 |
| 2013 | 57 | 35,645 | $594M | $31.6M | $38.9M | $22,836 | $30.99 |
| 2012 | 55 | 31,640 | $469M | $21.6M | $31.2M | $17,662 | $33.82 |
| 2011 | 58 | 29,852 | $426M | $19.5M | $26.4M | $15,362 | $36.38 |
| 2010 | 54 | 25,156 | $354M | $11.9M | $20.7M | $15,463 | $51.62 |
| 2009 | 55 | 29,012 | $333M | $16.0M | $23.5M | $11,212 | $42.71 |
Plan year is the year in which the plan year began. The drop in large plans from 2023 follows a rule change: the 100-participant line now counts participants with account balances, so many plans moved to the short form.
Provider share
Service provider organisations named most often on the Schedule C of the 109 plans on this page's list, by number of plans. A plan usually names several providers.
Largest plans
The 40 largest by participants of 109 plans with a page on this site.
| Plan | Sponsor | State | Type | Participants | Net assets | Per participant | Employer / active | Sch. C / participant |
|---|---|---|---|---|---|---|---|---|
| The Mastec, Inc. 401(k) Retirement Plan | Mastec, Inc. | FL | DC | 29,923 | $918M | $30,666 | $1,524 | $36.73 |
| Artera Services, LLC 401(k) Plan | Artera Services, LLC | GA | DC | 5,685 | $234M | $41,159 | $2,490 | $82.13 |
| Garney Holding Company Employee Stock Ownership Plan and Trust | Garney Holding Company | MO | DC | 2,583 | $1.67B | $646,097 | $17,229 | $146 |
| The Danella Companies 401(k) Plan | Danella Companies, Inc. | PA | DC | 2,053 | $20.0M | $9,746 | $175 | $46.90 |
| Southland Holdings, LLC 401(k) Profit Sharing Plan | Southland Holdings, LLC | TX | DC | 2,041 | $80.6M | $39,475 | $1,034 | $136 |
| Peak Utility Services Group, Inc. 401(k) Plan | Peak Utility Services Group, Inc. | CO | DC | 2,006 | $31.7M | $15,825 | $234 | $128 |
| Subcom Savings Plan | Subcom, LLC | NJ | DC | 1,835 | $223M | $121,282 | $5,181 | $48.70 |
| Centuri Group, Inc. Profit Sharing Plan | Centuri Group, Inc. | AZ | DC | 1,746 | $135M | $77,156 | $3,617 | $126 |
| United Utility Services 401(k) Plan | United Utility Services, LLC | NC | DC | 1,654 | $31.3M | $18,931 | $2,440 | $125 |
| Nti Connect 401(k) Plan | Nti Connect, LLC | IL | DC | 1,309 | $28.2M | $21,528 | $1,200 | $57.23 |
| NPL Construction Co. 401(k) Plan | Centuri Group, Inc. | AZ | DC | 1,304 | $17.2M | $13,183 | $982 | $82.20 |
| The 401(k) Plan | Strike Construction LLC | TX | DC | 1,263 | $33.0M | $26,159 | $1,002 | $51.40 |
| TL Nexlevel 401(k) Plan | TL Nexlevel, LLC | MN | DC | 1,146 | $35.1M | $30,633 | $2,070 | $93.88 |
| MWH Constructors 401(k) Plan | MWH Constructors, Inc. | CO | DC | 1,106 | $67.7M | $61,193 | $5,194 | $112 |
| North Texas Contracting, Inc. 401(k) Savings Plan | North Texas Contracting, Inc. | TX | DC | 1,020 | $17.7M | $17,314 | $879 | $132 |
| Isti Plant Services 401(k) Retirement Plan | Insulation Specialists of Tulsa Inc. | OK | DC | 1,018 | $13.2M | $12,957 | $708 | $10.48 |
| TURN2 Specialty Companies 401(k) Plan | TURN2 Specialty Companies, LLC | TX | DC | 943 | $3.7M | $3,969 | — | $21.86 |
| Vortex Companies, LLC 401(k) Plan | Vortex Companies, LLC | TX | DC | 888 | $15.5M | $17,503 | $637 | $128 |
| M.P.G. Pipeline Contractors L.L.C. 401(k) Plan | MPG Pipeline Contractors L.L.C. | TX | DC | 887 | $17.3M | $19,510 | $671 | $2.66 |
| 3E, LLC 401(k) Retirement Plan | 3E, LLC | IL | DC | 835 | $13.7M | $16,390 | — | $75.10 |
| Whitaker Construction Co., Inc. Employee Stock Ownership Plan | Whitaker Construction Co., Inc. | UT | DC | 831 | $147M | $176,869 | $10,000 | $60.74 |
| Evers and Sons, Inc. 401(k) Plan | Evers and Sons, Inc. | TX | DC | 735 | $1.4M | $1,910 | — | $40.08 |
| R.H. White 401(k) Profit Sharing-Pw Plan | R.H. White Construction Co., Inc. | MA | DC | 733 | $70.4M | $95,985 | $6,086 | $145 |
| Sak 401(k) Plan | Sunlight Peak, LLLP DBA Sak LLC | MO | DC | 661 | $40.1M | $60,614 | $2,396 | $10.84 |
| Aubrey Silvey Enterprises, Inc. Employee Stock Ownership Plan | Aubrey Silvey Enterprises, Inc. | GA | DC | 632 | $382M | $603,890 | $25,634 | — |
| Rnwbl 401(k) Plan | Rnwbl Holdings LLC | TX | DC | 627 | $6.1M | $9,759 | $1,648 | $48.28 |
| Jones Contractors Inc. 401(k) Plan | Jones Contractors Inc. | TN | DC | 617 | $7.3M | $11,782 | $2,031 | $81.01 |
| Utility Workers Union of America Deferred Compens Plan | Board of Trustees of the Uw of a Deferred Compensation Plan | MI | DC | 594 | $100M | $168,960 | $9,682 | $102 |
| The Contractors Retirement Plan | Linde Corporation | PA | DC | 573 | $6.9M | $12,124 | $1,017 | — |
| Electricom 401(k) Savings Plan | Electricom LLC | IN | DC | 564 | $26.5M | $46,949 | $3,211 | $118 |
| Gemma Power Systems 401(k) Plan | Gemma Power Systems, LLC | CT | DC | 564 | $46.4M | $82,267 | $4,690 | $203 |
| Sellenriek Holding Company, Inc. 401(k) Salary Savings Retirement Savings Plan | Sellenriek Holding Company, Inc. | MO | DC | 534 | $16.5M | $30,982 | $2,150 | $142 |
| Construction Management Group 401(k) Profit Sharing Plan | Corby Energy Services, Inc. | MI | DC | 511 | $20.2M | $39,467 | $1,591 | $129 |
| Traffic Plan 401(k) Plan | Traffic Plan | NJ | DC | 502 | $3.0M | $6,061 | $961 | $8.90 |
| Bi-Con Services, Inc. 401(k) Profit Sharing Plan | Bi-Con Services, Inc. | OH | DC | 498 | $69.3M | $139,197 | $6,280 | $486 |
| Merlino Companies Profit Sharing 401(k) Plan | Gary Merlino Construction Company, Inc. | WA | DC | 487 | $42.6M | $87,405 | $2,788 | $164 |
| Signal Energy 401(k) Plan | Signal Energy, LLC | TN | DC | 462 | $13.0M | $28,182 | $3,063 | $136 |
| Applied Construction Solutions, Inc. 401(k) Plan | Applied Construction Solutions, Inc. | WV | DC | 461 | $3.4M | $7,423 | $0 | $0.11 |
| NPL Construction Co. Bargained 401(k) Retirement Plan | Centuri Group, Inc. | AZ | DC | 448 | $5.8M | $12,847 | $2,130 | $75.17 |
| The Joy Companies, Inc. Retirement Plan | The Joy Companies, Inc. | MD | DC | 433 | $10.5M | $24,173 | $184 | $173 |
By plan size
By state
Questions and answers
How many retirement plans are there in utility system construction?
108 plans with 100 or more participants filed Form 5500 for plan year 2024, out of 155 pension plans on the full form. Smaller plans file Form 5500-SF and are counted separately where shown.
What is the typical 401(k) balance in utility system construction?
The median defined contribution plan reported $40,776 in net assets per participant (middle half of plans: $17,179 to $79,668); nationally it was $53,031. This is a plan-level average that includes former employees, not a typical person's balance.
What do employers contribute in utility system construction?
The median defined contribution plan received $2,522 in employer contributions per active participant, against $2,174 nationally. Plans with no employer contribution are included at zero.
What are average 401(k) fees in utility system construction?
Among defined contribution plans that report any Schedule C compensation, the median was $123 per participant and 0.37% of net assets (nationally $123 and 0.26%). Schedule C leaves out fund expense ratios and fees the employer pays, so it understates total cost.
Where does this come from?
Form 5500 annual reports in the EBSA research files, with filings received through 24 Aug 2026. Medians are computed by this site across plans with 100 or more participants.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Totals count every pension plan on the full form; medians and the plan list cover plans with 100 or more participants. See the methodology.